Spermiogenesis and ultrastructure of spermatozoon of Nicolla wisniewskii (Digenea, Opecoelidae), an intestinal parasite of Salmo trutta, were studied by electron microscopy. Spermiogenesis follows the ...
Infertility has become a major medical and social problem worldwide and many of the cases are due to male infertility. Yet the molecular mechanisms involved in spermatogenesis are only now beginning ...